I'm having an issue with wifi at work, at work we use unify APs and mac based auth, so I have to use device MAC to connect, however after about 30seconds - 2mins wifi connection consitantly and repeatably slows from 200+Mbps to 120kbps. Making my time at work tedious. If I toggle wifi off & on I will get full speed back for another 30-240 seconds. Due to the less than fantastic way advanced wifi settings have been enshi**ified in Android, I cannot try disabling 5ghz or IPv6 etc to debug.
In a seperate issue, I'm also having problems with a certain wireguard VPN app as I now get no internet connectivity when I dissconnect, I've been through the usual obvious VPN settings and even after uninstalling all VPN / wireguard apps I get a persistant "Disconnected from always-on VPN" notification that isn't dismissable.